Patents by Inventor Mahesh U. Ajgaonkar

Mahesh U. Ajgaonkar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Polarization insensitive multiple probe
    Patent number: 7869054
    Abstract: An apparatus for determining a polarization-insensitive interferometric signal and a birefringence for a sample and methods for using such an apparatus to characterize the sample are proved herein. Such apparatuses may generally be designed to eliminate birefringence associated with the apparatus itself, collect data from the sample using light in both orthogonal states, and determine the interference birefringence associated with the collected data.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: January 11, 2011
    Assignee: Medeikon Corporation
    Inventors: Mahesh U. Ajgaonkar, Cristian Toma
  • Single light source automatic calibration in distributed temperature sensing
    Publication number: 20100312512
    Abstract: System and method for auto correcting temperature measurement in a system using a fiber optic distributed sensor and a single light source by making use of both spontaneous and stimulated Raman backscattering.
    Type: Application
    Filed: June 8, 2010
    Publication date: December 9, 2010
    Inventor: Mahesh U. Ajgaonkar
  • Receiver for a differential phase modulated signal
    Patent number: 7480465
    Abstract: The receiver features a first splitter which divides a differential phase modulated signal into three signal components from which at least two signal components are routed via timers. The first timer has a delay of a half period of the carrier signal and thereby serves in a conventional way for phase comparison and thus for demodulation. The second timer is adjustable and is used to compensate for the dispersion.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: January 20, 2009
    Assignee: Nokia Siemens Networks GmbH & Co. KG
    Inventor: Mahesh U. Ajgaonkar